Holder for reflectors



April 20 1926. 1,581,121

P. M. HOTCHKIN HOLDER FOR REFLECTQRS Filed Jah'. 21. 1924 Patented pr. 20, 1926*.

:PAUL IVI. I-IOTCI-IKIN, OF CHICAGO, ILLINOIS.

HOLDER FOR REFLECTORS.

Application filed January 2'1, 1924. Serial No. 687,584.

To all whom t may concern:

Be it known that I, PAUL M. HOTCHKIN, acitizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in a AHolder for Reflectors, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to make and use the same. A

My invention relatesto means for supporting shades and reflectors and has more particular reference to a holder that may be adjusted to receive in its clamping ends shades or reflectors of divers dimensions or diameters.

One of the objects of my invention is to provide a shade or reflector holder that may be readily connected to a standard commercial form of base or socket and which ex-l tends a distance therefrom and is provided with' shielded apertures so that the intense heat from high voltage lamps or bulbs may be directed out of the structure without per- Initting any of the light rays to be emitted therefrom. It is also an object of my invention to provide a holder that will position the shade or reflector at a distance from the socket or base so that the globular portion of the lamp or bulb will be as far back as po-ssible within the reflector or shade so that direct light rays from the lamp filamentV may not escape from the reflecting surface of the shade or reflector but will be confined therein and be directed or controlled in the manner desired with the particular type of reflector that is used. Further objects reside in providing a holder that is novel in construction, economical to manufacture, de-y pendable in operation, and which may be readily manipulated after attachment tothe socket and base so as to be connected to the reflector or shade. All lof the foregoing and such other objects as may be apparent, I prefer to accomplish by means of the structure hereinafter described and as more par ticularly pointed out in the claims, reference being had to the accompanying drawings that form a part of this specification.

The drawings are, in a sense, merely diagrammatic for the purpose of illustrating a typical or preferred embodimentof my invention, and referring to the drawings, it will be seen- Figure 1 is an elevation of my improved holder for shades and reflectors showing the upper portion of a reflector connected there-v with.

Fig. 2 is a vertical transverse section taken on line 2-2 of Figure l.V

Fig. 3 is a bottom plan with the reflector removed.

Referring, first, to Figure 1, 5 indicates a hood for an electric light socket of any usual o-r well-known type, which hood is of an inverted cup-shape and is provided upon one side of its cylindrical wall with a' laterally disposed interiorally threaded stub 6, to which a metal conduit 7 may be connected so as to lead into the cap the current conductors to be connected to the respective terminals of the socket. This hood has ears 8 projecting laterally from opposite sides of its lower edge, and a suitable block 9 of insulating material is positioned below thecap and these ears. Removably secured to the insulating block by means of the screws 10 that secures thestructure in assembly, is a sleeve 11 of cylindrical 4shape that surrounds the projecting portion of the lamp socket and is provided with a lateral rim 12 around its upper edge so as .to fit against the under surface of the block 9. This sleeve .11 forms the base or support for the reflector or shade holder which will now be described.

This holder-structure consists' of a plurality of irregularly shaped metal plates 13 ,the side edges of which converge towards each other at their upper ends, and at said upper ends they are secured circumferentially to the sleeve or base 11. I prefer to employ four of these plates 13 that are arranged in quadrants and are segmentalv in shape as seen in-Figure 3 sothat they slightly overlap each other. Spaced from each other and arranged in vertical order are Ventilating apertures 111 that are made by cutting transverse or horizontalslits in the plates 13, and these slits' are protected by stamping out the metal above the same as at 15 to provide shields or guards above each slit so that light rays emanating fromthe lamp or bulb below the same will not pass out of the holder. The overlapping longitudinal or vertical edge of each plate 13 is provided with a longitudinally extending embossment 16 so as to offset the same, and this embossed portion will overlie the adjacent edge of the next plate 13 and permit the latter to fit snugly in the recess or seat formed by this embossment. The lower edges of the plates are bent laterally outwardly as at 17 to provide a basal flange, and vthe metal beyond this flange is bent downwardly in an ogee curve to provide a depending skirt 18. This lower portion of the holder will thus conform to the general shape ofthe upper rim 19 'of the reflector or shade 20 that .is engaged with and supported by the skirt of the holder.

Surrounding the holder, and outside the plates 13, preferably below the lower'hoods 15, is a clamping band or strap 21 the ends of whichare bent laterally and provi-ded with apertures so that a tightening bolt 22 may be inserted therethrough, and maintained by means of the nut 23 upon the end of said bolt to draw the segments of the holder inwardly towards the axis of the structure. ltwill be understood the plates 13 are of metal and are of a slightly springy character -so that when the clamping band or strip is loosened `the vsegments .of the holder may be spread apart suliicient to receive the widest portiOn .of therim of the reflector or shade after whichthe plates or segments maybe .tightened upon the rim by means of the clamping band so that the reflector will be maintained insecure assembly therewith. As seen in Figs. 1 and 2 the clamping band has a lug or lateral extension 24. uponits upper edge that enters under an vadjacent hood or into one of the Ventilating slots whereby to prevent accident yrotative movement of the ban-d. Thus there is obtained a fixed relation between the clamping device and the holder element and, when aninstallation is made, the ends of the band where the tightening means are positioned may be lockedso vthat thereafter these tightening means will'be in convenient reach. The heat from the bulb or lamp will arise and pass out of the,

prising `a support, alplurality of independent plates in contacting relation for'all adjusted positions thereof and extendingzfrom the support and connected thereto, and means encircling the opposite ends of said plates for holding the same around a reflector.

2. A holder of the class described comprising a support, a plurality of independencircliugtheunsecured ends of said plates and adjusted to hold them in overlapping relation aroundareliector.

3. A holder ofthe .classidescribed comprising f a support, :a Lplu'rality of segmentalplates secured to said :support fand Aextend-k ing therefrom saidrplateslhaving their marginal1 .edges diverging fromthe point'of sup port to their free-endsfandimeansffor holding the free endsl of'.- said :plates i together :in contacting relation.' s

4. A holder of the class described comprising `a :plurality lof vindependently'. `'but intimately l associated `plates'fad'apted vto lsurround supportsof diiferentfsizes-:and 'formed to. substantially encircle af shade .or reflector top said plates i extending- 'fromf thefsupport and having their free ends arranged toz'engage a reflector'or theslikeyand means '.coacting with the free ends of'saidaplates lfor holding .the sameengaged :around Isaid retlector or the'like.v

-5. A holder ofthe :kinddescribed comprising support, a plurality `of `plates ex-l with means yfor tightening `thetsame where-v by zto draw said platesetoward'the axis of said holder. f

v6. Aholder ofthezkind described comprisingLa support,fa plurality 4offplatesextending therefromv and yprovided with vent apertures, 'and v:a :constricting fiele-ment :encircling said plates 'whereby to draw ithe same-inwardly,fsaid elementhaving a lateral portion` that enters i an .-'adjacent 'vent Caper-- turel and maintains l saidfelement against -ac.

cidentah rotative movement.

f Signed at' Chicago, '."couniv 'inf @ook and State: of Illinois, '.this19th ray of 'January 1924.

PAUL M.;HoroHKrN.A 

